<head>
<link rel="stylesheet"href="bootstrap-3.3.2-dist/css/bootstrap.css"/>
<link rel="stylesheet"href="bootstrap-3.3.2-dist/css/bootstrap-theme.css"/>
<script type="text/javascript"src="bootstrap-3.3.2-dist/js/bootstrap.js"></script>
<link rel="stylesheet"href="//maxcdn.bootstrapcdn.com/font-awesome/4.3.0/css/font-awesome.min.css"/>

</head>
<form class="form-inline"align="center">
  <div class="form-group">
    <label for="exampleInputName2">Name</label>
    <input type="text" class="form-control" id="exampleInputName2" placeholder="Jane Doe">
  </div>
  <div class="form-group">
    <label for="exampleInputEmail2">Email</label>
    <input type="email" class="form-control" id="exampleInputEmail2" placeholder="jane.doe@example.com">
  </div>
  <button type="submit" class="btn btn-default">Send invitation</button>
</form>